Truck Hardware Gatorback Red GMC Dually Mud Flaps - Rear Pair - Fits 2020-2026 GMC Sierra 3500HD

Part #:
GCN205R-GR2
Sale Price
$560.70
$623.00
Free Shipping
In Stock Ships by Monday

Additional details

    ⚠️Does NOT fit with rear dually wheel well liners
  • Includes (2) 21" wide dually flaps (1 driver/1 pass) & brackets
  • Custom fit - No body drilling required for installation
  • Rear - 13.25" tire coverage from fender to bottom of flap
  • Lifetime limited warranty

Gatorback Plate Finishes

Here are the different plate finishines

At a glance

Overall sentiment is strongly positive: buyers consistently describe Gatorback/SharpTruck mud flaps as premium, heavy‑duty, great-looking, and highly effective at stopping rocks/mud/snow from hitting paint, steps, and trailers. The main reservations are the high price and occasional installation/fitment or hardware/packaging issues, which are often mitigated by responsive customer service and strong warranty support.

What Customers Liked

  • Thick, heavy rubber with substantial weight plates; feels “OTR/semi-truck grade,” doesn’t flap at highway speeds, flexible in cold weather, holds up through winters, gravel roads, mud, and years of use; many repeat buyers across multiple trucks.
  • Significantly reduces rock chips, road debris, mud/salt spray on paint, rocker panels, running boards/power steps, cameras, and keeps trailers/5th wheels/RVs cleaner and protected; coverage often better than OEM or plastic splash guards.
  • Looks “sharp,” classy, and truck-specific; logo/plate options (Z71, AT4X, Ford, Ram, Duramax, flags, black/satin/gunmetal/chrome) get compliments and help the truck stand out; finishing caps appreciated.
  • Many report perfect/vehicle-specific fit with factory-hole mounting, adjustable in/out positioning, good clearance with stock tires, and compatibility with certain trims/fender flares when configured correctly.
  • Generally described as straightforward with the right tools; helpful YouTube videos; bracket kits (especially rear/dually) add stability and make alignment easier; ability to install without removing wheels on some vehicles.
  • Frequent praise for fast shipping, responsive support, quick exchanges for wrong parts, replacement parts/plates/flaps shipped rapidly, and hassle-free warranty (including tears/rips or shipping damage).
  • Replaceable plates; removable lower section on some models for off-road clearance; ability to adjust flap stick-out; some like drilling only into plastic liner (not body).

Things to Consider

  • Most common complaint; many call them expensive/overpriced (often $600–$1000+), sometimes compounded by needing separate bracket kits/plates; some say alternatives may be “good enough” for less.
  • Mixed experiences: some installs are quick, others take hours—especially rear/dually, with wheel-well liners, rock rails/steps, or limited access; right-angle drill and/or removing rear wheels often recommended; alignment can be finicky.
  • Paper instructions sometimes vague, lacking steps, inconsistent with videos, or confusing (hardware ID, left/right orientation, templates, washer placement); requests for better labeling, templates, and model-specific videos.
  • Occasional reports of holes not lining up, needing to drill/elongate slots, bend/trim brackets, trim liners/trim pieces, or create homemade brackets; some rubbing with oversized tires/offset wheels; a few cases of poor fit on specific trims/years.
  • Multiple reviewers note drilling is still required (usually into plastic liner or flap), so ‘no-drill’ feels misleading in some kits.
  • Some dislike plastic clips/nut inserts pulling out/stripping, mixed metric/SAE hardware, bolt length issues, flimsy/galvanized or plastic brackets at high price, silver hardware visible (wish black), occasional missing/mismatched hardware or parts.
  • Some flaps/plates arrived scuffed/scratched or boxes damaged; brackets loosening in transit; a few wrong items shipped or missing pieces (spacers/washers/clips), though support often resolves quickly.
  • Some note low ground clearance depending on model/height; concerns about snagging in deep snow, tall grass, or off-road obstacles; some wish flaps were longer/shorter depending on use.
  • Plate finish can streak/stain (e.g., gunmetal), color/gloss differs from expectations, logos not level in a few cases, and some wish flaps came pre-slotted/pre-drilled for easier install.
AI-generated from the text of customer reviews
Dually flaps
4
Ordered front stainless flaps for Denali dually, very happy with product ordered what I thought was the same for rear, found rears only come in black not stainless, now they don’t match, now I have to build my own stainless brackets for rear to match the fronts, disappointed and expensive
Great Product
5
Very easy to install and they look great on my 2022 GMC.

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Heavy-Duty Protection with Bold GMC Styling

Give your GMC Sierra 3500 HD dually a stylish upgrade with the Truck Hardware Gatorback Red "GMC" Logo Dually Mud Flaps - Set. These premium mud flaps provide exceptional coverage for your truck's rear wheels, effectively protecting against mud, gravel, and road debris while proudly displaying the officially licensed GMC logo in bold red letters on a 304 stainless steel plate. Built for durability and to handle tough road conditions, these mud flaps keep your vehicle protected and looking great.

Premium Construction for Lasting Durability

The Gatorback Red "GMC" Logo Dually Mud Flaps are constructed from 21" wide and 1/2" thick heavy-duty rubber for superior debris protection and durability. The stainless steel plate features the officially licensed GMC logo in striking red letters, adding a custom, bold look to your vehicle. Custom-fit rear support brackets are crafted from a durable nylon and fiberglass composite that will not fade or chip over time, ensuring your mud flaps continue to look great and perform effectively for years to come.

Effortless No-Drill Installation

Installing these mud flaps is simple and hassle-free, with no body drilling required. The mud flaps use factory mounting points, and custom-fit brackets and hardware are included for a secure fit over OEM splash guards. The rubber portion of the flap is removable from the bracket via a built-in channel, allowing you to easily slide the flap in and out for extra ground clearance when needed. All necessary hardware is included, making installation straightforward with tools you have at home.

Tire Coverage

  • Rear Tire Coverage: Provides 13.25" of tire coverage from the bottom of the fender to the bottom of the flap, delivering outstanding protection from road debris.

Key Features

  • Heavy-Duty Rubber Construction: 21" wide flaps provide excellent coverage and defense against road debris.
  • 304 Stainless Steel Plate with Red GMC Logo: The officially licensed GMC logo on the polished stainless steel plate adds a striking, customized appearance to your truck.
  • No-Drill Installation: Custom-fit brackets and hardware utilize factory mounting points for a quick and easy installation.
  • Heavy Weight to Prevent Sailing: The heavyweight construction keeps the flaps securely in place, preventing flapping or lifting even at high speeds.

Product Care & Maintenance

  • Rubber Flaps: Clean with mild soap and water to maintain their appearance. Avoid abrasive cleaners that could damage the rubber.
  • Stainless Steel Plate: Use a non-abrasive cleaner to keep the polished look of the stainless steel plate.

What's Included

  • Two 21" wide Gatorback Red "GMC" Logo Mud Flaps for the rear.
  • Custom rear support brackets and all necessary mounting hardware.

Warranty Information

Gatorback Mud Flaps are backed by a limited lifetime warranty. This warranty covers defects in the rubber portion of the mud flaps for the original owner, including replacement for damages caused by normal wear and tear. The nylon support brackets come with a 1-year warranty against manufacturing defects. The warranty does not cover damage resulting from misuse, abuse, or improper installation.

Terms

  • 304 Stainless Steel: A type of stainless steel known for its excellent corrosion resistance, strength, and polished appearance.
  • No-Drill Installation: Installation method that uses existing factory mounting points, eliminating the need for drilling new holes.
  • Heavy-Duty Rubber: A resilient material designed to withstand tough road conditions, protecting your vehicle from debris.

Enhance the protection and style of your GMC Sierra 3500 HD dually with the Truck Hardware Gatorback Red "GMC" Logo Dually Mud Flaps. Featuring durable heavy-duty rubber construction and a striking red GMC logo on a stainless steel plate, these mud flaps offer rugged protection while adding a bold and distinctive touch to your vehicle. Trust Gatorback for long-lasting quality, easy installation, and a custom look that keeps your truck safe from road debris.

BrandGatorback by Truck Hardware
Length24 inch(es)
Width21 inch(es)
Height.5 inch(es)
Weight24 lb(s)
UPC667511041641

  • 2026 GMC Sierra 3500 HD
  • 2025 GMC Sierra 3500 HD
  • 2024 GMC Sierra 3500 HD
  • 2023 GMC Sierra 3500 HD
  • 2022 GMC Sierra 3500 HD
  • 2021 GMC Sierra 3500 HD
  • 2020 GMC Sierra 3500 HD

WARNING: Some products may contain chemicals such as DEHP, which can cause cancer, birth defects or other reproductive harm. For more info go to www.p65warnings.ca.gov